Not trying to hijack your thread but here's my personal technique.
It's a quick cut out from my blog about using multiple sides of a single towel without going over paint with a dirty side of the towel.
"For this take your towel soaked in solutions and gently wring it out. You want it wet but not completely soaking and dripping water. With towels with a short nap and long nap side use the longer nap. This lets the more dirt get trapped deeper and since you're trying to minimize swirls and scratches you want to avoid dragging dirt across the paint surface.
When you first start washing your car lay the towel folded in 1/4s flat on the surface and drag with absolutely zero pressure as so.
Now you're going to be picking up dirt and grime as seen here.
To avoid dragging this back across the surface lift slightly on the front of the towel
When you're done lifting 2 or 3 times your towel will have lines of dirt similar to this. After each panel is complete I dry using a Cobra Guzzler HD, again as little pressure as required folded in 1/4's.
If you're towel still has solution you can continue using a different 1/4 of the towel. You can see here where I used all 4 of the long nap side.
"
If anyone wants the link to the blog post or products used feel free to message me , I don't want to start spamming my blog links here as I feel it is in poor taste.